Safety control mechanism for bobbin-winders.



C. IVI. GR-EISING 1&1. DAHLIN.

SAFETYCUNTROL MECHANISM FOR BOBBIN WINDERS.

APPLICATION FILED ocr. I3. I9I3.

l l @Y Patented June 20, 1916.

f nIIIIIIIIIIIIUIIIIIIIIIII LJIIM WIIIIIEIIIfI'IFIIIII 1g uw al I CHARLES M. GREISING AND JOHN DAI-ILIN, OF ST. PAUL, MINNESOTA, ASSIGNORS TO ST. PAULTWINE COMPANY, A CORPORATION OF MINNESOTA.

SAFETY CONTROL MECHANISM FOR BOBBIN-WINDERS.

Application filed October 13, 1913.

To all whom t may concern.'

Be it known that we, CHARLES M. Gruns- ING and JOHN DAHLIN, citizens of the United States, and residents of St. Paul, in the county of Ramsey and State of Min nesota, have invented certain new and useful Improvements in Safety Control Mechanism for Bobbin-l/Vinders, of which the following is a full, clear, and exact speci-fi- CallOD. g

This invention relates to bobbin winders and more particularly to safety control mechanism associated therewith.

1n the manufacture of twine there are three main stages, namely, the preparing of the liber, the spinning of the liber into twine, placing the same upon bobbins, and balling the twine. Twine filled bobbins from the spinning machines are placed on the balling machines, where the twine is removed from the bobbins and made up into balls. In many instances a ball is completed before the bobbin is completely unwound and the twine left on the bobbin is so short that it does not pay to start another ball. This being the case, the bobbin with its remaining relatively short length` of twine is removed from the balling machine and sent over to a bobbin winding machine. Again, during the balling process it is sometimes found that portions of the twine on a bobbin are too loosely woven. When such is the case this lbobbin is also sent over to a bobbin winding machine. Here all of the relatively short pieces of twine from the bobbins are spun onto another bobbin placed in the bobbin winding machine, the relatively short piecesA being` tied together. Also the strips of loosely bound twine are removed from the defective bobbins and the remaining good portion thereof wound on the new bobbin being formed. This is done to prevent waste. It is apparent, therefore, that in the operation of a bobbin winding machine it is necessary that the machine be started and stopped at frequent intervals. It has been found that operators of these bobbin winding machines become careless in starting and stopping such machines a'nd in attempting to remove bobbins before the machines have been stopped, and as a result thereof are injured.

The object, therefore, of our invention is to render the operation of bobbin winding machines safer.

Specification of Letters Patent.

Patented J une 20, 1916.

serial No. 794,837.

The invention is illustrated on the accompanying sheet of drawings, in which- Figure 1 is a plan view of a bobbin winding` machine embodying our invention; and, Fig. 2 is a side elevation of the same.

The various novel features of our invention will be apparent from the description andy drawings and will be particularly pointed out in the appended claims.

Y Secured to any suitable support 10 is a base 11, secured to which are three bracket members 12, 13 and 14. Journaled in bearing portions 15 and 16 of the bracket members 12 and 13 respectively, is a spindle 17, upon which a bobbin 18 is placed for re ceiving twine. Mounted upon and secured. to the spindle 17 is a collar 19 having a pin V20 which passes through an openingl in the bobbin so that when the spindle is rotated the bobbin is rotated therewith. Also ymounted upon the spindle `17 are a loose 14C respectively. When the worm 2G is actuated it gives a reciprocatory motion to a 'guide member 29 having a portion 29a which engages the worm 2G and also an opening 30 for the reception of a rod 31 upon which the guide member 29 slides, the rod being secured to bracket'members 13 and 141. The guide member 29 is also provided with an eye portion 32 through which twine is fed to the twine receiving bobbin 18 from a source of twine supply, which in this case is a bobbin 33 mounted loosely upon a stationary spindle 311 in a protective cage 35 having a hinged door 36. This cage, which is mounted upon a bracket 37, is provided with two long rollers 38 between which the twine passes as it is fed to the receiving bobbin.

Previous to our invention the bobbin winding machine was set in motion by taking hold of a belt shifter 39 and shifting it in one direction or the other, but in operating the machine in this manner it was found that operators became reckless in attempting to remove thetwine supplying bobbin 33 before the machine was stopped. In this way their hands were caught and sometimes injured. Again, with no cage around the twine supplying bobbin, parts of the body havefcome into engagement with the rapidly moving bobbin and caused painful burns;

mechanism and th Source, 0f twin@ Supply- In this particular oase it 4takes the form of mi iidiiistable link 4,10, @ne end 0f which is pivoted vto an arm 41, which Ais secured to the lower portion of the cage door 36, the other end of the link being secured to an arm 12, which in yturn is secured to a Vbent rod 43, the latter being in engagement with the belt shifting rod 3,9.,V IViththe cagedoor 36 open the beltis in engagement with the loosey pulk ley 21, with the connecting parts being as shown in fulllines, reference being had particularly torFig. 1. If it is desired to start the machine, the Vsame is accomplished by 4 closing the cage door 36 which draws the link 4Q to the right, swinging the arm i2 in a clockwise t direction, as shown in Fig. 1, and shifting the belt 23 lthrough the medium of the belt shifter rod 39V onto the tight pulley, whereupon motion is transmitted to the bobbin 18 for receiving twine from the sup vply bobbin in the cage. At the'same time motion is also transmitted through the gears 24 and 25 to the worm 26 for reciprocating t the yfeeder guide member V29. lith the machine in operation, the cage door of necessity being closed, it is impossible for the operator to be injured in any manner whatsoeverbyvgetting mixed up with the twine supplying bobbin o r by the twine wound thereon. Further, it is impossible for the miss f i114 intent ,mer 1w @Meines for spirit and scope of the invention as set forth iii the follewmg @launelVhat we claim as our invention and desire to secure by Letters Patent is:

1. In a bohbin winding machine, the coinbination of a receiving bobbin, nieans for actuatingthe same, a feeder bobbin, a cage therefor having a door, and an adjustable connection between said door and actuating mechanism by means of which said actuating mechanism is controlled by means of said door.

2. In a bobbin winding machine, the combination of receiving bobbin, means for actuating the saine, a feeder bobbin, a guard therefor having a movable element, and a connection. between said movable element and said actuating means for controlling the operation of said machine.

3. In a. bobbin winding machine, the combination of a receiving bobbin, means for actuating the saine, a feeder bohbin, a guard therefor having a door, and means controlled by the opening and closing of said door for controlling the operation'of said actuating means.` Y

In testimony whereof we affix our signatures, in the presence of two witnesses.

CHARLES M. GREISING. JOHN DAI-ILIN.

lVitnesses SIoMo J. OLnimne, MAn'riN W. MoDoNAUGH.

ve cents each, by adgregsing the "Commissioner et laentl. Washington, D. Q." 

